Which transformation of a figure on a coordinate grid preserves congruence?
A (x, y) → (-0.5x, 0.5y)
B (x, y) + (2x, -2y)
C (x, y) → (3x, 3y)
D (x, y) → (-y), -X)

Use the four functions below for this question. compare and contrast these four functions using complete sentences focus on the slope and y- intercept first, and then on any additional properties of each function

Prove that 16^4-2^13-4^5 is divisible by 11.

Astudent was asked to find the square of 7x+3. the student quickly wrote (7x+3)^3= 49x^2+9. identify the student's error and provide the correct answer.